Microphone



FIG. 1 is a left side elevational view of a microphone showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof; and

FIG. 7 is a top, front and right side perspective view thereof, the broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a microphone, as shown and described. 